Mine drilling and channeling machine.



L` J. DAFT. MINE Ummm AND GHANNELING MACHINE MYLIUJUIION HLED JUNETZS, 19ML W jfL @mi 3.4M u Patmned Aug. 19M.

L, J. DAFT.

MlNE DR'LLLING AND CHANNBLING MACHINE.

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ATPLILATIUN FILED .1UN1123,1:\L`-

Patented Aug. 25, 1914.

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I To all 'whom it 'may concern.'

.tion may consist of a cutting tool attached.

ENT (Milli- :MINE DRILLING ANI) Gmttlllilllllllftltd MtHtliilil.,

Epccication et' "it Application mail .ione atl, l

,lie it known that I, Lon'ornmow d". Dari', citizen or' the United States, residing; at Seattle, in the county of King and @tate ci y have invented a certain. new and useful Improvement in Mine Drilling and Channeling Machines, of which the iiollowing is a specification.

My invention relates to improvements in mining drill machines and more particu larly to improvements in drilling machines embodying a piston drill mounted upon a poet, or supporting column that ie rigidly secured in position in a mine, and the ob jects of my invention are to provide anita/ble means for controlling' the variatione in the angular position of the cutting-tool rod ol" nl rlrill whereby such' cutting-tool rod may' "he directed to cut channelein difl'erent planea` 'in the Walle o1 a mine, andrtoprovide i1n proved ,means for attaching the""d'l'i-lljnech` anism. to lthe supporting post. Y I attain theta )ohjectsrhy devicesillustrated in the accompanying' drawings, wherein* Figure l, is a view in side elevation of a device embodying my inventicm'Fig. 2, a plan view of the same on lokenlinen, oi Fig. 1, in Which certain parte are broken away to better illustrate certain other parte, and Fig. 3 is an end elevation of the same on the line y, y of Fifr. 2'.'

Like re. erence numerals indicate like parte throughoiit the drawings.

Brieiy a structure containing my invento a ,piston that is adated for reciprocal movements Within a cy incler, `such movi-iW ments being controlled by a suitable valve, the rear end ofthe cylinder being provided with a ratchet 1ncmher,"pawls and rifle bar of usual construction for rotating the pieton and cutting-tool, The cylinder is mounted in the casingin such manner that it may be fed forward toward the coal, and the casing is so attached to a post that it may be turned horizontally thereabout by means of a rotary engine adapted to have air delivered to it in intermittent puffs from the main cylinder of the drill. bvionsly, a machine embodying my inu vention may be advantageously employed for mining coal and other minerals or cutting roche and other hard material.

Referring to the drawings, 5 is a post or supporting column of ordinary construction, which is adapted by suitable means to have ,17 provided on one sido oi a drill r.

Aagainst thehacl-tA 'taucht-the dis-ih 1'? l),

' cular vvorm gear 2Q. on ite 4bottom end por hraclret @Wand having its main atterri Patent. l a'teiiierl .flirt t mit.. Mortal lilo. '@"i'iitt ita ende .firmly compres-.eed the Jtiool' and root' ci" a mine, rigidly to uro it in a vertical position. lll tivo part lower Sleeveeon'ipo'sed oir the segments il and 'l'. r idly' clamped to the coinnin 3 by holte 8, t3 which are each pivotally mounted in the segment t and are each adapted toiit between tivo inge S), 9 on the segment 'l and to be eecnred in position hy nnte l0, l0 which nerevv on the lugs 9, 9. .l-l. tivo part opper e c. composed oi segmento il and 3,52 is rotatabl mounted'upon the post 5, directly above said lower sleeve and is held in position hy holte i3, i3, which bolts fifi, i3 are secured to the segment 11i :inf to Atit iictfveenthe li a, l' l aeginont l2 and n yl l) proper positions by nnte lo, dovvn on the luge lil, '14. The al. :me provided with a clamping.;r device lil 's recessed to fit ove.q a conically elia.

as chown in Fig. 2, which drill c adapted to 'carry a drill cylinder lli. dick if( ia secured in tlievrfreceaacd clamping; device ltiloya pawl 20 which may hei n i Bti of aboli; 21-, to preiieiiteaid dink il? turning 1n the receeeed clampin; clavie The segment l1 is provided Wit i a'eennci tion which ieadapted `to he engaged by worin 23 jonrnaled in suitable hearings f T provided onjii bracket 253 of the lower electo (l. l rotary' engine .n the titi aloe mounted allait d"- rectly connected with. the wornitl le admi to he actuated hy air commenicated to from the drill cylinder lll through an hose 2'? and ie provided with a roveren gear 28 by means ol. which its; dirt/.ion t rotation may be reversed. The drill cylin der lil slidably mounted in the easing li; hy means oli V shaped hearinge 29, 29, shown in Fig'. B, provided on each of ite sides and ie adapted to he longitudinally adjusted and held therein by a feed screw E30 the inner end oi which 'feed screw 30 serene into a threaded hole 4provided in the drill cylinder 19 ite outer ond lacing provided with a cranlrhandle 3'1- whioh is suitably journaled in the outer end oi a bracket 32 provided on the cylinder casing 18 by which cranlehandle 3l, the said iced-acrevv 30 may be rotated. The drill cylinder 19, is pro-- vided with a valve chest having a suitable air connection 34, and is further provided' rcd 36 is connected with a drill rod 37, carrying a drill point 38, on its outer end.

The operation of my drill machine may be described as follows. The device is set up in a' mine with the post 5 approximately vertical and the drill point 38 in a desired position with respect to the face of the rock or coal that is to be cut. Air under pressure is admitted to the valve chest 83 through the air hose 3i from whence it is admitted to the cylinder 19 threfugh suitably arranged and valve-controlled;'ports to cause the piston to reciprocate, thus to cause the drill point to strike blows on the face of the mineral to cut it away. f When the piston is at the forward end of the cylinder it laps the air tap 39 thus closing said tap 39 andcutting off the compressed air supply from the rotary engine 26 that is connected with the cylinder 1) by the air hose 28, but when the piston move-s toward the, opposite end of the cylinder it opens the air tap 39 and permits air to flow through the hose 28 to actuate the rotary engine 26 and turn the worm 22.V

The rotary engine 26 thus may receive an impulse on each backward stroke of the piston and the worm 23, to which this impulse is transmitted, act upon the worm gear 22 to move it through a small part of a revolution each time, thus to rotate the drill cylinder slightly about the post 5 and to move the cutting tool a short distance horizontally along the cut in the face of the mineral from which new position it may strike another blow as the piston is again driven to the front end of the cylinder. Air is thus taken from the cylinder through the hose 28 and delivered to the rotary engine 26 in a series of intermittent puffs is delivered to said engine to actuate the drill mechanism during the time that the cutting-tool is withdrawn from the mineral, and the mechanism is so arranged that air is cut olf from the engine- 26 before the cutting-tool strikes its blow, so that said cutting tool shall not be moving horizontally when it strikes the face of the mineral.

The rotary engine 26 is provided with a reversing gear 28 by means of which the cutting-tool 38 may be reversed and thus cause said cutting-tool to oscillare forth and back across the face of the mineral by intermittent steps to cut a horizontal channel in the face of the mineral. if it be' desired to make a vertical cut in the 'face of the coal the rotary engine 26 may be disconnected and the pressure of the pawl 20 so regulated by releasing the tension on the bolt 2l, that the.

drill mechanism may be ,oscillated vertically by hand.

Manifestly, minor changes in the details and construction of my device may be made within the scope of the appended` claims without departing from the spirit of my invention or sacricing any of its advantages.

'hat I claim is:

l. In a mining drill, the combination with sol a supporting column, of a lower two-part sleeve rigidly clamped to said column, a

two-part upper sleeve rotatably-mounted on said column, a drill casing provided on one side with a conical disk, a clamp carried -by said upper sleeve and recessed to receive said disk, a drill cylinder carried by said casing, a motor supported adjacent to said lower sleeve, an air conduit for said cylinder, an air -conduit connection between said cylin der and motor, a drill carried by the pistonrod of the drill cylinder, and means for rotating said cylinder about saidy column when thedrll is withdrawn.

2. In a mining drill, the combination with a supporting column, of an .upper and a lower sleeve on said column, said lower sleeve being rigidly clamped upon the column, and said upper sleeve rotatably-mounted thereon, a drill cylinder carried upon the upper sleeve, a motor supported adjacent to the lower sleeve, worm gearing interposed between said rotatable sleeve and motor and driven by the latter to rotate said cylinder about the column by successive movements y of the motor shaft.

3. In a mining drill, the combination with a supporting column, ofa lower`sleeve fixed upon the column, an upper sleeve rotatablymounted on said column and formed with worm gearing, a drill cylinder carried by said upper sleeve, afmotor supported adjacent to said lower sleeve, a worm wheel driven by said motor and meshing with said y LONGFELLOW J. DAFT.

Witnesses F. C. MATHENY,

A. HAsKINs. 

